A prostate balloon dilation catheter

Abstract

This invention discloses a prostate balloon dilation catheter, comprising a catheter body; a first balloon disposed outside the catheter body; and a blunt scoring body disposed along the axial direction of the first balloon on its surface, protruding from the surface of the first balloon, the blunt scoring body being used to press against a target location; wherein, in the uninflated state of the first balloon, the blunt scoring body is located at the fold position of the first balloon, the fold being a circumferential depression of the first balloon. This invention utilizes the blunt scoring body to press against the prostate tissue, creating stress concentration and thus assisting the anterior balloon in dilating the prostate at the target location. Compared to existing technologies, this effectively avoids the risk of scratches to the balloon and urethral wall.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, specifically to a prostate balloon dilation catheter. Background Technology

[0002] Benign prostatic hyperplasia (BPH) is a common disease among middle-aged and elderly men, with a prevalence exceeding 50% in men over 50. Current treatment methods all have limitations: laser surgery is prone to postoperative edema, sexual dysfunction, and recurrence; rivets used in dilation procedures are prone to dislodgement; steam ablation requires repeated treatments; and vascular embolization has a high technical barrier and its long-term efficacy remains to be verified.

[0003] In recent years, prostate dilation surgery has received much attention because it does not require thermal ablation or implantation of instruments and has little impact on sexual function. However, it still faces three major technical bottlenecks: insufficient dilation depth due to circumferential stress of the prostate capsule, difficulty in effectively dilating the cone-shaped structure of the bladder neck, and unnecessary damage caused by anisotropic tissues.

[0004] One related technology provides a prostate support balloon that can treat benign prostatic hyperplasia. However, the dilator in the technology may scratch the balloon, causing the device to fail. At the same time, the dilator may scratch the urethral wall during the balloon retrieval process. Utility Model Content

[0005] The purpose of this utility model is to provide a prostate balloon dilation catheter in order to solve the above problems.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A prostate balloon dilation catheter, comprising a catheter body;

[0008] The first balloon is disposed outside the catheter body;

[0009] A blunt scoring body is disposed on the surface of the first balloon along the axial direction of the first balloon, and the blunt scoring body protrudes from the surface of the first balloon. The blunt scoring body is used to press against the target position.

[0010] Wherein, when the first balloon is in an uninflated state, the blunt scoring body is located at the fold position of the first balloon, and the fold is a circumferential depression of the first balloon.

[0011] As a further description of the above technical solution, it also includes a second balloon, which is disposed outside the catheter and is used to anchor the catheter body near the target location.

[0012] As a further description of the above technical solution, a connector is provided at the end of the catheter body, and an orientation mark is provided on the surface of the connector, the position of which corresponds to the position of the blunt scoring body.

[0013] As a further description of the above technical solution, the directional mark and the blunt scoring body are aligned on the same straight line.

[0014] As a further description of the above technical solution, the shape of the blunt scoring body includes at least a triangular shape, a circular shape, and an elliptical shape.

[0015] As a further description of the above technical solution, the material of the blunt scoring body is metal.

[0016] As a further description of the above technical solution, the material of the blunt scoring body is non-metallic.

[0017] As a further description of the above technical solution, the blunt scoring body is bonded to the surface of the first balloon.

[0018] As a further description of the above technical solution, the blunt scoring body is integrally formed with the first balloon.

[0019] As a further description of the above technical solution, the blunt scoring body is provided with one.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This invention uses a blunt scoring body to press against the prostate tissue to create stress concentration, thereby assisting the anterior balloon in dilating the prostate at the target location. Compared with the prior art, this invention can effectively avoid the risk of scratching the balloon and urethral wall.

[0022] 2. This utility model allows for more intuitive and precise control of the position of the blunt scoring body by using directional marks corresponding to the position of the blunt scoring body.

[0023] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a top view of the prostate balloon dilation catheter provided by this utility model;

[0025] Figure 2 This is a partial front view of the prostate balloon dilation catheter provided by this utility model;

[0026] Figure 3 This is a schematic diagram of the first balloon before inflation in this utility model;

[0027] Figure 4 This is a schematic diagram of the inflation of the first balloon in this utility model;

[0028] Figure 5 This is a schematic diagram of the first balloon after inflation in this utility model.

[0029] Reference numerals: 1. Catheter body; 2. First balloon; 201. Bending peak; 202. Bending valley; 3. Blunt groove body; 4. Second balloon; 5. Connector; 6. Orientation mark. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] like Figures 1-5 As shown, in one embodiment, a prostate balloon dilation catheter includes:

[0032] The first balloon 2 is disposed outside the catheter body; the first balloon 2 is disposed at the front end of the catheter, the front end being the part of the catheter that reaches the target position first when the catheter moves toward the target position.

[0033] A blunt scoring body 3 is disposed along the axial direction of the first balloon 2 on the surface of the first balloon 2, and the blunt scoring body 3 protrudes from the surface of the first balloon 2. The blunt scoring body 3 is used to press against the target position. Through the stress concentration of the blunt scoring body 3, the prostate tissue can be dilated and torn. Compared with the dilator in related technologies, this reduces the risk of the balloon being punctured and causing instrument failure. At the same time, during the retraction process, the blunt scoring body 3 is wrapped inside the first balloon 2, which also reduces the risk of scratching the urethral wall.

[0034] Among them, such as Figure 3 As shown, in the uninflated state of the first balloon 2, the blunt scoring body 3 is located at the fold 202 of the first balloon 2, where the fold 202 is a circumferential depression of the first balloon 2. Specifically, after treatment, the first balloon 2 contracts, causing the blunt scoring body 3 to be wrapped around the fold 202, which reduces the risk of damage to the urethral wall during withdrawal.

[0035] Optionally, the prostate balloon dilation catheter further includes a second balloon 4, which is disposed outside the catheter and is used to anchor the catheter body 1 near the target position. The second balloon 4 is disposed at the rear end of the first balloon 2. By anchoring the second balloon 4 near the tip of the prostate, stability can be ensured during dilation.

[0036] Optionally, the end of the catheter body 1 is provided with a connector 5, and the surface of the connector 5 is provided with an orientation mark 6, the position of which corresponds to the position of the blunt scoring body 3. Since the blunt scoring body 3 cannot be directly observed after entering the human body, the position of the blunt scoring body 3 can be adjusted more intuitively and accurately by controlling the orientation mark 6 corresponding to its position. In some embodiments, the orientation mark 6 and the blunt scoring body 3 are aligned on a straight line.

[0037] Optionally, the shape of the blunt scoring body 3 includes at least triangular, circular, and elliptical shapes. In some other embodiments, it may also be one of other irregular polygonal shapes that achieve the same function. It should be noted that the shape here refers to... Figure 2 The shape of the blunt-scratched body 3 from a viewing angle. The tip of the blunt-scratched body 3 is non-sharp, specifically, it can be rounded or chamfered.

[0038] Optionally, the material of the blunt scoring body 3 can be a metal or a non-metal.

[0039] Optionally, the blunt scoring body 3 is bonded to the surface of the first balloon 2, while in some other feasible embodiments, the blunt scoring body 3 is integrally formed with the first balloon 2 and is made of the same material.

[0040] Working principle:

[0041] After the first balloon 2 reaches the target lesion, the directional marker 6 is rotated to the target position (e.g., the 12 o'clock position at the bladder neck) by slowly rotating the catheter body 1. A medical pressure pump then pressurizes the second balloon 4, anchoring it near the apex of the prostate. Next, the first balloon 2 is pressurized by the medical pressure pump, and it begins to inflate. During inflation, the balloons at the folds 201 on both sides of the blunt-sharpened body 3 inflate first. The blunt-sharpened body 3 moves slowly, eventually maintaining a position perpendicular to the tangent at the connection point with the first balloon 2. At this point, the tip of the blunt-sharpened body 3 presses against the prostatic tissue of the urethra at the designated position, creating stress concentration. As the first balloon 2 continues to inflate, the prostatic tissue at this position is first to rupture, thereby achieving the therapeutic purpose.

[0042] After treatment, the first balloon 2, the blunt-scarred body 3, and the second balloon 4 are depressurized and returned to their initial state before being withdrawn from the body along with the catheter, thus completing the treatment.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prostatic balloon dilation catheter, characterized by, Including the catheter body; The first balloon is disposed outside the catheter body; A blunt scoring body is disposed on the surface of the first balloon along the axial direction of the first balloon, and the blunt scoring body protrudes from the surface of the first balloon. The blunt scoring body is used to press against the target position. Wherein, when the first balloon is in an uninflated state, the blunt scoring body is located at the fold position of the first balloon, and the fold is a circumferential depression of the first balloon.

2. The prostatic balloon dilation catheter of claim 1, wherein, It also includes a second balloon, which is disposed outside the catheter body and is used to anchor the catheter body near the target location.

3. The prostate balloon dilation catheter of claim 1, wherein, The end of the catheter body is provided with a connector, and the surface of the connector is provided with an orientation mark, the position of which corresponds to the position of the blunt scoring body.

4. The prostate balloon dilation catheter according to claim 3, characterized in that, The directional mark is aligned with the blunt scoring body.

5. The prostate balloon dilation catheter according to claim 1, characterized in that, The shape of the blunt scoring body includes at least triangular, circular, and elliptical shapes.

6. The prostate balloon dilation catheter according to claim 1, characterized in that, The material of the blunt scoring body is metal.

7. The prostate balloon dilation catheter according to claim 1, characterized in that, The material of the blunt scoring body is non-metallic.

8. The prostate balloon dilation catheter according to claim 1, characterized in that, The blunt scoring body is bonded to the surface of the first balloon.

9. The prostate balloon dilation catheter according to claim 1, characterized in that, The blunt scoring body is integrally formed with the first balloon.

10. The prostate balloon dilation catheter according to claim 1, characterized in that, One blunt scoring body is provided.

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